Improve registration.

Author: SebastianStehle

sdk/Notifo.SDK.FirebasePlugin/PluginFirebasePushNotifications/IFirebasePushNotification.shared.cs

@@ -172,6 +172,5 @@ public interface IFirebasePushNotification
         void RemoveNotification(string tag, int id);
 
         Task<string> GetTokenAsync();
-
     }
 }

sdk/Notifo.SDK/INotifoMobilePush.cs

@@ -78,6 +78,12 @@ public partial interface INotifoMobilePush : INotifoClient
         /// </summary>
         void Register();
 
+        /// <summary>
+        /// Register for notifications on demand.
+        /// </summary>
+        /// <param name="tokenToRegister">The token to register.</param>
+        void Register(string? tokenToRegister);
+
         /// <summary>
         /// Unregister notifications on demand.
         /// </summary>

sdk/Notifo.SDK/NotifoMobilePush/NotifoMobilePushImplementation.shared.cs

@@ -167,18 +167,37 @@ public void RaiseError(string error, Exception? exception, object? source)
         /// <inheritdoc/>
         public void Register()
         {
-            if (string.IsNullOrEmpty(token) || string.IsNullOrEmpty(clientProvider.ApiKey))
+            async Task RegisterAsync()
+            {
+                if (pushEventsProvider == null)
+                {
+                    return;
+                }
+
+                // Always fetch the token to avoid any consistency issues.
+                var tokenToRegister = await pushEventsProvider.GetTokenAsync();
+
+                Register(tokenToRegister);
+            }
+
+            _ = RegisterAsync();
+        }
+
+        /// <inheritdoc/>
+        public void Register(string? tokenToRegister)
+        {
+            if (string.IsNullOrEmpty(tokenToRegister))
             {
                 return;
             }
 
-            commandQueue.Run(new TokenRegisterCommand { Token = token });
+            commandQueue.Run(new TokenRegisterCommand { Token = tokenToRegister });
         }
 
         /// <inheritdoc/>
         public void Unregister()
         {
-            if (string.IsNullOrEmpty(token) || string.IsNullOrEmpty(clientProvider.ApiKey))
+            if (string.IsNullOrEmpty(token))
             {
                 return;
             }
@@ -221,7 +240,12 @@ private void UpdateToken(string? newToken)
             {
                 token = newToken;
 
-                Register();
+                // Only register the token if the client is already configured to avoid warning logs.
+                if (!string.IsNullOrEmpty(clientProvider.ApiKey) &&
+                    !string.IsNullOrEmpty(clientProvider.ApiUrl))
+                {
+                    Register(newToken);
+                }
             }
         }
     }